The '''Society for the Diffusion of Useful Knowledge''' ('''SDUK'''), was founded in 1826, mainly at the instigation of Henry Peter Brougham, 1st Baron Brougham and Vaux|Lord Brougham
[B. Hilton, ''A Mad, Bad, & Dangerous People?'' (Oxford 2008) p. 174]
with the object of publishing information to people who were unable to obtain formal teaching, or who preferred autodidactism|self-education
. A British Whig Party|Whiggish London
organisation that published inexpensive texts intended to adapt scientific and similarly high-minded material for the rapidly expanding reading public, it was wound up in 1848.
An American group of the same name was founded as part of the Lyceum movement
in the United States around the same period. Its Boston Society for the Diffusion of Useful Knowledge|Boston branch
sponsored lectures by such speakers as Ralph Waldo Emerson
, and was active from 1829 to 1947.
Henry David Thoreau